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A 4-meter McMath Telescope for the Infrared

Published online by Cambridge University Press:  03 August 2017

W. Livingston
W. Livingston*
Affiliation:
National Solar Observatory, P. 0. Box 26732, Tucson, AZ 85726, U.S.A.

Abstract

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Having no window and a filled aperture, i.e., no occlusion by secondary optics, the all-reflective McMath telescope is a proven IR facility. Beyond about 2 μm, it is diffraction limited, however. Engineering studies show that the McMath building could accommodate an increase to a 4-m aperture with a 6-m alt-azimuth feed, permitting sub-arcsec resolution to 12 μm. The use of cooled, solid aluminum mirrors would eliminate “mirror seeing”, which plagues non-vacuum solar telescopes.

Keywords

infrared: starsSun: generaltelescopes
Type
Part 7: Infrared Technology and the Future
Information
Symposium - International Astronomical Union , Volume 154: Infrared Solar Physics , 1994 , pp. 589 - 594
Copyright
Copyright © Kluwer 1994 

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